1480 results about "Projection system" patented technology

The invention discloses a holographic projection system based on an AI large model. According to the invention, through the nano-scale optical coating and environment self-adaptive adjustment technology, harmful blue light is effectively filtered, environment light parameters are dynamically matched, the problem that eyes are injured by a common screen is solved, and the method is especially suitable for long-time learning scenes of children. The holographic projection core module adopts a naked eye 3D light field technology, presents complex models such as dinosaur, marine organisms and the like in a three-dimensional suspension manner through high-fidelity color restoration and dynamic depth-of-field adjustment capability, and is matched with gesture touch control and voice instructions of multi-mode interaction hardware, so that a user can directly touch a virtual object, and the real-time performance of the virtual object is improved. Experience upgrading from plane observation to space interaction is achieved, and knowledge such as English learning and animal and plant cognition is converted into interactive games and story narration through virtual teacher images and scene scripts. The autistic children can complete social dialogue training under the guidance of the virtual role, the system analyzes emotion fluctuation in real time and adjusts a guidance strategy, and social fear is gradually eliminated.

The embodiment disclose a wearable augmented reality eyewear system including a frame supporting left and right transparent lenses. A plurality of outward-facing cameras mounted on the frame have overlapping fields of view for capturing real-time images of the environment. A plurality of inward-facing cameras integrated in the frame or lenses detect pupil size, pupil dilation, and gaze direction using infrared imaging. A digital processor analyzes gaze direction and fixation based on virtual grid coordinates, initiates an object or person recognition routine using images from the outward-facing cameras, and compares detected features with records in a database. At least one lens includes an AR projection system embedded therein and configured to superimpose data about the recognized object or person in the user's field of view. An audio speaker positioned near the user's ear outputs related audio. A wireless communication module enables real-time data exchange with a cloud-based platform.

A kaleidoscopic laser beam projector (KLBP) system that employs a single moving structure to project patterns of sweeping laser beams with diverse sweep directions and emission apertures. The system comprises a collimated light source, a spinning mirror deflector (“spindle / flutter mirror”) at the center, and a stationary kaleidoscopic mirror containing multiple facet mirrors arranged in a concave fashion around the spindle mirror. As the spindle mirror rotates, it directs laser beams in a radially whirling movement toward the facet mirrors, which then subdivide these beams into multiple short strokes and redirect them outward in different directions. Various embodiments include configurations with diffractive optical elements (DOEs) for beam splitting, different kaleidoscopic mirror geometries (hexagonal, octagonal, etc.), and innovative flutter mirror mechanisms that create controlled angular variations during rotation. The system enables a “4×1” configuration that replaces traditional “4×4” systems requiring eight motors and multiple moving structures. The KLBP system offers significant advantages including mechanical simplicity, reduced size and weight, improved energy efficiency, enhanced reliability, cost-effectiveness, and modular configurability. The diverse beam incidence angles enable superior illumination of complex three-dimensional objects for applications in machine vision systems, precision metrology, gap and flushness inspection, and robot-assisted assembly of complex structures.

The invention relates to the field of multi-device screen projection, in particular to a multi-device rapid pairing and seamless screen projection switching system based on ultrasonic signals, which comprises an ultrasonic processing module, a switching module, a data transmission module and an intelligent control processing module which are in wireless communication connection, wherein the ultrasonic processing module is used for transmitting and receiving ultrasonic signals through a phase modulation technology and a self-adaptive filtering technology, and pairing the ultrasonic signals; the switching module is used for switching screen projection connection after successful pairing; the data transmission module is used for establishing a temporary data transmission channel for data transmission; and the intelligent control processing module is used for receiving a screen projection request through a screen projection system optimization algorithm, a time window and a priority algorithm, and dynamically adjusting screen projection resource allocation. According to the invention, efficient pairing and switching of multiple devices can be realized, reliable information transmission and error correction are guaranteed, screen projection resource management and switching are more flexible, and good user experience and adaptability are improved.

The disclosure relates to augmented reality devices based on a curved waveguide. An augmented reality device is provided. The augmented reality device includes a projection system to project an undistorted image, an input optical compensator located on the path of light rays out-coupled from the projection system, a curved waveguide comprising an input diffractive optical element and an output diffractive optical element. The output diffractive optical element performs the function of an output optical compensator that converts the light beams of a distorted image at the output of the waveguide into parallel light beams to output an undistorted image. Augmented reality glasses comprising an augmented reality device are also proposed. There is provided the ability to project a virtual image without aberrations, distortions and doubling of the image.

The invention relates to the technical field of data processing, and particularly discloses a desktop multi-point touch interactive projection system, which comprises a projector, an optical touch module, a sensor module, a controller, a memory and a cloud server, the projector is used for projecting an image onto a projection surface; the optical touch module is used for completing gesture recognition of a user on a projection surface and capturing touch operation of the user; the sensor module is used for collecting environment information in real time; the controller is used for coordinating the work of each module; the memory is used for locally storing projection content and user preference data; and the cloud server realizes remote synchronization of data. According to the invention, high-precision gesture touch interaction is realized, 'identification and response 'of operation is realized, and the sensitivity and anti-interference performance of touch are effectively improved.

The present disclosure relates to a motor vehicle, including a projection system having at least one first and at least one second projection device. The at least one first projection device has at least one first light source and the at least second projection device has at least one second light source, where at least one first light projection can be projected into surroundings of the motor vehicle by the at least first projection device. The at least first light projection defines an actual position of the stationary motor vehicle, and at least one second light projection can be projected into surroundings of the motor vehicle by the at least second projection device. The at least second light projection defines a target position defining a parking position of the motor vehicle. The at least second projection device can be set by the user to change the target position. A deviation between the actual position and the target position can be determined via a detection device. Depending on the determined deviation, control parameters for performing an autonomous driving maneuver, in the context of which the motor vehicle can be maneuvered autonomously into the parking position, can be determined via a control device.

The invention discloses an intelligent self-closed-loop car lamp light blanket projection image illumination uniformity optimization method, and belongs to the technical field of intelligent car lamps. The method comprises the following steps: S1, defining parameters of a projection system as a particle swarm, and initializing positions and speeds of particles; s2, defining a fitness evaluation function of each particle; s3, updating the speed and the position of each particle according to a particle swarm optimization algorithm formula; s4, calculating fitness values of the particles according to the updated position vectors of the particles; and S5, judging whether an iteration termination condition is met or not, if the iteration termination condition is met, outputting the optimal projection system parameters, and if the iteration termination condition is not met, skipping to the step S3. According to the intelligent self-closed-loop optimization method for the illumination uniformity of the projected image of the vehicle lamp light blanket, the illumination uniformity of the projected image is effectively improved, the quality and adaptability of light blanket projection are remarkably improved, and the visual effect of light blanket projection is improved.

The invention belongs to the technical field of projection light field regulation and control, and particularly relates to a method and a system for enhancing manufacturability of a projection type structure photomask pattern. Determining an initial mask pattern according to the target structured light field and the magnification of the projection system; calculating an initially generated structured light field by adopting a vector diffraction imaging model, calculating a numerical value of a target function, and judging whether the numerical value meets a preset threshold value or not; if the target function does not meet the preset threshold value, carrying out iterative optimization on the mask pattern by adopting an optimal gradient method until the preset threshold value of the target function is met, and outputting a continuous numerical value mask; pixel splitting or fusion is carried out on the continuous numerical mask according to the required mask manufacturing precision; local integral approximation operation is adopted, binarization processing is carried out on the mask, and the manufacturability of the mask is enhanced. According to the method, the projection type structure light field which is high in degree of freedom, high in efficiency, low in calculation power requirement and robust can be optimized, the mask pattern which can be manufactured can be obtained, and the manufacturing precision of the mask can be adjusted at will so as to adapt to different mask pattern preparation processes.

The invention relates to the technical field of panoramic projection systems, in particular to an intelligent XR multi-mode interactive exhibition stadium panoramic projection system, which comprises an intelligent data terminal, a display interaction module in communication connection with the intelligent data terminal, a VR terminal comprising a user client, an action capture card and virtual reality glasses, an intelligent service background connected with the VR terminal through a network, and a display interaction module in communication connection with the intelligent data terminal. Comprising an action data processing module used for acquiring action and position data from an action capture card and decoding and processing the data; the virtual reality module is used for updating a virtual scene according to the action data; the data communication and control module is used for performing data communication with the VR terminal and controlling the display screen; the panoramic projection display system comprises a plurality of projectors and is used for forming a curved screen or a spherical screen in an exhibition hall; determining the content projected to the display screen according to the real-time action position of the user; the user experience is greatly improved, and the exhibition information transmission efficiency can be effectively improved.

Augmented reality and virtual reality display systems and devices are configured for efficient use of projected light. In some aspects, a display system includes a light projection system and a head-mounted display configured to project light into an eye of the user to display virtual image content. The head-mounted display includes at least one waveguide comprising a plurality of in-coupling regions each configured to receive, from the light projection system, light corresponding to a portion of the user's field of view and to in-couple the light into the waveguide; and a plurality of out-coupling regions configured to out-couple the light out of the waveguide to display the virtual content, wherein each of the out-coupling regions are configured to receive light from different ones of the in-coupling regions. In some implementations, each in-coupling region has a one-to-one correspondence with a unique corresponding out-coupling region.

The utility model provides a display panel and a projection system. The display panel includes: a first substrate; the second substrate is arranged opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; the reflecting layer is arranged on one side, facing the second substrate, of the first substrate; the metasurface light splitting structure layer is arranged on the side, away from the first substrate, of the reflecting layer, the metasurface light splitting structure layer comprises a plurality of metasurface light splitting units which are periodically arranged, and at least one metasurface light splitting unit comprises a plurality of metasurface light splitting convergence structures; and the metasurface light splitting unit is used for splitting the white light reflected by the reflecting layer into a plurality of monochromatic lights, and converging the plurality of monochromatic lights to an area where a plurality of sub-pixels of the display panel are located through the metasurface light splitting convergence structure.

Disclosed herein is a calibration method for a depth map generating system. A projection system and imaging system thereof projects an array of dots onto a planar surface located at a first known distance, obtains a first image of the projected dots, and determines a first set of three-dimensional positions of the projected dots at the planar surface; projects an array of dots onto a planar surface located at a second known distance, obtains a second image of the projected dots, and determines a second set of three-dimensional positions of the projected dots at the planar surface. Projected dots of the first set are associated with projected dots of the second set. Convergence of the lines is used to calculate a center position. The center position is used with the projected dots and intrinsic properties to predict the spatial position of dots of light for different distances of an object.

Provided are a display panel and a manufacturing method therefor, and a projection system. The display panel comprises: a first substrate; a second substrate arranged opposite to the first substrate; a liquid crystal layer, arranged between the first substrate and the second substrate; a reflective layer, arranged on the side of the first substrate facing the second substrate; and a metasurface light-splitting structural layer, arranged on the side of the reflective layer away from the first substrate, wherein the metasurface light-splitting structural layer comprises a plurality of metasurface light-splitting units that are periodically arranged, at least one metasurface light-splitting unit comprises a plurality of metasurface light-splitting and converging structures, and each metasurface light-splitting unit is configured to: split white light reflected by the reflective layer into a plurality of pieces of monochromatic light, and by means of the metasurface light-splitting and converging structure, converge the plurality of pieces of monochromatic light into an area where a plurality of subpixels of the display panel are located.

Augmented reality and virtual reality display systems and devices are configured for efficient use of projected light. In some aspects, a display system includes a light projection system and a head-mounted display configured to project light into an eye of the user to display virtual image content. The head-mounted display includes at least one waveguide comprising a plurality of in-coupling elements each configured to receive, from the light projection system, light corresponding to a portion of the user's field of view and to in-couple the light into the waveguide; and a plurality of out-coupling elements configured to out-couple the light out of the waveguide to display the virtual content, wherein each of the out-coupling elements are configured to receive light from different ones of the in-coupling elements.

The invention relates to the technical field of optics, in particular to a projection lens, a projection system and electronic equipment. The projection lens comprises a first lens group, an aperture diaphragm and a second lens group which are sequentially arranged from a projection surface to an image source surface along an optical axis, the first lens group has negative focal power, and the second lens group has positive focal power; the first lens group consists of a first lens, a first sub-lens group and a diaphragm front lens which are sequentially arranged from a projection surface to an image source surface along an optical axis; the first sub-lens group comprises at least one lens with negative focal power; the first lens and the diaphragm front lens respectively have positive focal power, and the first sub-lens group has negative focal power; the second lens group consists of a diaphragm rear lens and a second sub-lens group which are sequentially arranged from the projection surface to the image source surface along the optical axis; the second sub-lens group has positive focal power and comprises a group of balsaming lenses with positive focal power, and the diaphragm rear lens has negative focal power. The focusing range of the projection lens is larger than or equal to 500 mm.

The invention discloses a phase deflection measurement method and device based on four-step phase shift, and belongs to the technical field of computer vision and precision measurement, and the method comprises the steps: S1, classifying patterns needing to be projected according to types, and fusing the patterns into a color image; s2, sequentially projecting color images, and simultaneously collecting a pattern modulated and reflected by an object to be measured to obtain a reflection pattern; s3, carrying out channel separation processing on the reflection pattern, recovering the reflection pattern into an original grey-scale map, and respectively obtaining all phase patterns and Gray code patterns in the horizontal direction and the vertical direction; s4, performing phase calculation and Gray code auxiliary positioning according to the phase pattern and the Gray code pattern to obtain an absolute phase; and S5, mapping the absolute phase into a depth value, and recovering the three-dimensional shape of the surface of the object to be measured in combination with calibration parameters of a camera-projection system. The time of each measurement period is shortened, the system delay in the projection and acquisition process is reduced, and the real-time response capability of the whole set of detection system is improved.

Embodiments of this application provide a screen projection system and an electronic device. The system includes a first electronic device and a second electronic device, an application message on the first electronic device is streamed to the second electronic device, and a corresponding message notification control is displayed on the second electronic device. The second electronic device receives an operation of a user on the message notification control at first time, and sends a screen projection request to the first electronic device, so that an interface to which the application message corresponds is displayed within a screen projection window of the second electronic device at second time, where the interface includes image information corresponding to the application message. The second time is later than the first time, and the first electronic device is in a lock screen or screen-off state in a time interval between the first time and the second time. In this way, the user can directly perform an operation on the second electronic device when the first electronic device is in the lock screen or screen-off state, thereby pulling up an application on the first electronic device to be screen projected on the second electronic device.

A method of generating a compressed data stream from an uncompressed data stream with red, green and blue sub-streams of red, green and blue colour values of an image, comprising, for each of a number of sub-interval which together form a time interval: Determining, in each sub-stream, at least N−1 sets of successive equal colour values and run-lengths indicating the numbers of colour values in the sets; and generating a data packet composed of one colour value from each set and their respective run-lengths; which data packet forms the compressed data stream for said time interval. Further disclosed is a projection system using this method.

An apparatus including a set of three illumination sources disposed in a first plane. Each of the set of three illumination sources is disposed at a position in the first plane offset from others of the set of three illumination sources by 120 degrees measured in polar coordinates. The apparatus also includes a set of three waveguide layers disposed adjacent the set of three illumination sources. Each of the set of three waveguide layers includes an incoupling diffractive element disposed at a lateral position offset by 180 degrees from a corresponding illumination source of the set of three illumination sources.

A projection device and a projection system are provided. The projection device includes a light source, an optical modulating assembly, and a lens. The light source includes a laser and at least one optical waveguide. The laser includes first light emitting chips, second light emitting chips, and third light emitting chips. One of the at least one optical waveguide is located on a light outgoing side of the third light emitting chips. Each optical waveguide includes a light incident surface, a light outgoing surface, a light incident portion, and a light outgoing portion. The light incident surface and the light outgoing surface are opposite to each other in a thickness direction of the optical waveguide. The light incident portion is configured to introduce laser light incident thereon into the optical waveguide. The light outgoing portion is configured to transmit the laser light out of the optical waveguide.

A personal planetarium projection system is provided. The system may comprise a light source, a removable star disc comprising a transparent star and planet pattern, and a focus lens mechanism for focusing the light source through the star disc. The system may also comprise an optical zoom lens for projecting light passing through the star disc onto a projection surface to produce a projected image. The zoom lens enables different magnifications of the projected image.

The invention discloses an interactive projection system based on an image acquisition and rendering technology, and relates to the technical field of man-machine interaction projection systems. Comprises: an image acquisition module for capturing user images and video data and performing data acquisition by using a high-definition camera and an infrared sensor; the expression recognition and emotion analysis module analyzes and recognizes the facial expression of the user in real time through a deep learning algorithm, and judges the emotion state of the user; and the voice recognition and emotion analysis module transcribes and analyzes voice input of the user in real time by using a natural language processing technology, and judges the emotion state and intention of the user. The system provided by the invention can generate highly personalized interactive feedback according to the emotional state of the user, thereby improving the user experience; a multi-modal fusion technology is adopted, analysis results of facial expressions, voice emotions and posture emotions are subjected to weighted fusion, the accuracy of emotion analysis is improved, a pre-trained face key point detection model is utilized, facial feature points are extracted, and the recognition precision is improved.

The arrangement comprises a projection system (22) for microlithography and a wall element (28) for thermally shielding the projection system (22) from an illumination system (10). The projection system (22) has an object field that can be illuminated by the illumination system (10) and optical elements (M1-M6) for imaging the object field onto an image plane (21). The wall element (28) also includes a passive shielding surface element (30) arranged in a transition region between a last beam section (41) of the illumination system (10) and a first beam section (42) of the projection system (22). According to the invention, the arrangement further comprises an active cooling element (31) positioned in the transition region, with a cooling surface (32) that extends at least partially along a surface area of ​​the passive shielding surface element (30).The active cooling element positioned in the transition area can significantly reduce the rate of change of the heat flow from the lighting system to the projection system.

The present invention relates to a projection system for a projection exposure system for microlithography, in particular for EUV lithography, comprising an optical element. The objective of providing a projection system for a projection exposure system for microlithography, in particular for EUV lithography, in which thermally induced oscillating aberrations are minimized, is achieved by the projection system comprising a radiation-absorbing element which is configured to temporarily interrupt the beam path of the projection system behind the optical element.

The present application provides a kind of rough rolling process strip explicit plate shape online visual detection system and method, the present application system includes strip detection system, grating light grid structured light projection system, image acquisition system, distance adjustment system and image processing system;When strip enters hot detector detection range, transmission signal triggers grating light grid structured light projection system and image acquisition system start working;Image acquisition system is used to transmit the image information collected to image processing system in real time;Distance adjustment system is used to adjust the distance between grating light grid structured light projection system and image acquisition system.Image processing system is used to process the image transmitted by image acquisition system in real time, obtains the three-dimensional profile of strip, obtains the two-dimensional curve of strip in XOY coordinate system and the two-dimensional curve in YOZ coordinate system, and then discriminates the degree and type of strip buckling head and camber.

A projection system, a projection device, and a control method thereof are provided. The control method of the projection device includes the following steps: transmitting a first original command by a terminal device; projecting an adjustment image by the projection device in response to the first original command corresponding to an image correction operation of the projection device, wherein the adjustment image includes at least one pattern array and at least one adjustment reference point; transmitting a second original command by the terminal device; and adjusting a position of the at least one adjustment reference point of the adjustment image by the projection device in response to the second original command corresponding to adjusting the position of the at least one adjustment reference point of the adjustment image, wherein the at least one adjustment reference point is located in the corresponding at least one pattern array.

LCoS panels using liquid crystal (LC) media having negative dielectric anisotropy and LC media comprised therein. The liquid crystal material (LC medium) has negative dielectric anisotropy and high optical anisotropy and is particularly useful in electro-optical displays including projection systems based on vertical alignment (VA) nematic panels.

The utility model discloses a replaceable pin type coding mark point for a laser projection positioning system, which belongs to the technical field of laser projection and comprises a target and a positioning pin which are detachably and fixedly connected with each other, and the target is further provided with a coding reference point suitable for being identified by the laser projection positioning system. According to the embodiment of the utility model, the target and the positioning pin are detachably connected, only one set of target and one set of positioning pins with different diameters need to be prepared, and flexible assembly can be carried out according to the size of a datum hole in a workpiece and a required coding reference point during use, so that the number of spare parts is reduced, and the use cost is saved. And meanwhile, high-efficiency and high-precision adaptation to datum holes with different diameters is realized, so that a projection system can identify coding standard points, and the aim of aligning a coordinate system of a CAD model corresponding to a workpiece object is realized.

The application relates to the field of Bluetooth communication technology and discloses a wireless screen projection method and system integrating Bluetooth control and power supply management, which comprises the following steps: a sending end device adds a preset time delay to a Bluetooth data packet response according to an energy state of the sending end device; a receiving end device decodes the energy state by measuring the difference between a round-trip response time and a reference value, and performs screen projection strategy adjustment and negotiation in cooperation when a condition is met. The application encodes the energy state into a Bluetooth communication timing sequence, realizes endogenous perception and adaptive adjustment of a power supply state of a screen projection system, fundamentally solves the screen projection interruption problem caused by energy state disconnection in a traditional scheme, ensures smooth and non-perceptual picture quality switching through a bidirectional negotiation mechanism, and significantly improves the reliability and user experience of wireless screen projection.